Variegação em Agave sisalana

Medina, Juan C.

doi:10.1590/s0006-87051955000100036

Cited by 3 publications

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“…In the phylogeny, it is possible to identify two independent origins of variegation in A. sisalana, one from A. sisalana VNM14 and SGJ21 and another from IAC2 and IAC5 with LBM15. Medina (1955) first identified the marginata form of A. sisalana in Araraquara SP Brazil in 1939 and it is plausible that IAC2 and Frontiers in Chemical Engineering frontiersin.org IAC5 are descendants of that plant. Additionally, IAC2, IAC5, and LBM15 exhibit a prominent deformation on the margins of the leaf abaxial face, appearing as a localized roughness (Supplementary Figure S4).…”

Section: Using Mayahuelin To Trace the History Of Agave Accessions In...mentioning

confidence: 99%

Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

Raya,

de Carvalho,

José

et al. 2023

Front. Chem. Eng.

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Agaves have been a valuable resource in dryland areas for centuries, providing fibers (sisal), food, and beverages. However, the advent of synthetic fibers has led to a decrease in research on Agave, resulting in the cessation of breeding programs in Brazil. With the rise of climate change, there is renewed interest in Agave for its potential as a biofuel feedstock in semiarid regions. Since 2016, we have been collecting Agave accessions throughout the country and retrieving what is left of Brazil’s original breeding program to establish a new germplasm bank. Here, we evaluated 21 of those accessions growing in the field. We used molecular markers and morphophysiological traits to characterize the plants. Based on the Mayahuelin molecular marker, we were able to reconstruct a phylogeny for the Brazilian accessions. The morphophysiological traits explained 34.6% of the phenotypic variation in the dataset, with physiological traits such as leaf water content, effective quantum efficiency of photosystem II (ΦPSII), and specific leaf mass (SLM) as the most significant traits. Specifically, we evaluated nine Agave species and found that the physiological traits, rather than the morphological ones, were the most significant. Leaf water content was negatively correlated with specific leaf mass, which could be used as a marker for selecting cultivars with higher biomass accumulation. Interestingly, ΦPSII and chlorophyll content were negatively correlated, suggesting photochemical adaptations throughout the rosette. Molecular and phenotypic data suggest that A. amaniensis, which is frequently considered a synonym of A. sisalana, is effectively another species. Overall, this study provides valuable information on the physiological traits of Brazilian Agave accessions and is a starting point for selecting more productive and climate-resilient cultivars for biorenewables production.

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Section: Using Mayahuelin To Trace the History Of Agave Accessions In...mentioning

confidence: 99%

Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

Raya,

de Carvalho,

José

et al. 2023

Front. Chem. Eng.

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A New Cultivar in Sisal from East Africa: Agave Sisalana Perr. ex Engelm. cv. Hildana

Bos

Lensing

1973

East African Agricultural and Forestry Journal

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Estudo comparativo entre espécies de agave

Ciaramello¹,

Castro²,

Petinelli

1975

Bragantia

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SINOPSEAgave sisalana e A. fourcroydes, responsáveis pela produção de praticamente 90% das fibras duras consumidas no mundo, foram estudadas comparativamente em relação a A. amaniensis, A. letonae, A. zapupe e A. sisalana f. marginata, de 1965 a 1974, em experimento conduzido na E.E. de Tatui, do Instituto Agronômico.Ao completar nove anos de plantio no campo, a espécie A. fourcroydes ainda se encontrava com todas as plantas em produção, tendo as demais espécies concluído o ciclo vegetativo em períodos que variaram de quatro a oito anos. A. fourcroydes produziu a maior quantidade total de fibras por planta, com 5.044 gramas, enquanto A. sisalana apresentou a maior produção média anual, com 582 gramas de fibras secas por planta.Agave sisalana, tanto em sua forma normal como na variegada, deu, aproximadamente, o mesmo número de folhas que o obtido, até ao presente, para A. fourcroydes; as demais espécies produziram menor número de folhas.

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Variegação em Agave sisalana

Cited by 3 publications

References 0 publications

Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

A New Cultivar in Sisal from East Africa: Agave Sisalana Perr. ex Engelm. cv. Hildana

Estudo comparativo entre espécies de agave

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